"Kstars cannot be opened because the identity of the developer cannot be confirmed": this is the message I get in macOS High Sierra when I try to open KStars I verified that my Security & Privacy / Allow Apps downloaded from / Anywhere was checked. What to do ?
Just try to open it again. That worked for me before.
Created attachment 108216 [details] Alert when opening KStars
Ooops, it seems that my comments didn't get through : I redownload the dmg and install it. Same problem when trying to open KStars
I asked Robert about this Mac issue and this was his response: I would instruct him to right click the app, and select open from the top of the menu. Then when the dialog opens up select open again. Tell him this is a one time thing that adds the program you installed to a list so unless he installs it again or updates, he should be able to just double click after he does it
Beautiful, it works. Thanks !